CN103672251A - Rubber pipe joint and sleeve - Google Patents
Rubber pipe joint and sleeve Download PDFInfo
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- CN103672251A CN103672251A CN201310683668.6A CN201310683668A CN103672251A CN 103672251 A CN103672251 A CN 103672251A CN 201310683668 A CN201310683668 A CN 201310683668A CN 103672251 A CN103672251 A CN 103672251A
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- 230000007246 mechanism Effects 0.000 claims abstract description 179
- 230000008878 coupling Effects 0.000 claims description 40
- 238000010168 coupling process Methods 0.000 claims description 40
- 238000005859 coupling reaction Methods 0.000 claims description 40
- 238000006073 displacement reaction Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/227—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the hose being introduced into or onto the connecting member and automatically locked
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention provides a rubber pipe joint and a sleeve. The rubber pipe joint comprises a sleeve (310, 610) and a core rod (320, 620) arranged in the sleeve, wherein a plurality of first tooth-shaped mechanisms (311, 611) are sequentially arranged on the inner wall of the sleeve along the length direction, a plurality of second tooth-shaped mechanisms (321, 621) are sequentially arranged on the outer wall of the core rod along the length direction, after each first interval between every two adjacent first tooth-shaped mechanisms is buckled, a second interval between every two corresponding adjacent second tooth-shaped mechanisms is subtracted, and the obtained difference is smaller than a preset value, so that after buckling, all the first tooth-shaped mechanisms and all the second tooth-shaped mechanisms are staggered and opposite, and all the first tooth-shaped mechanisms are at least partially fallen into second groove mechanisms (322, 622) formed between all the adjacent second tooth-shaped mechanisms on the outer wall of the core rod. Through the mode, the rubber tube is effectively protected after the assembly is buckled and pressed.
Description
Technical field
The present invention relates to technical field of engineering machinery, specifically a kind of rubber hose coupling and sleeve.
Background technique
Rubber hose coupling is a kind of for the link being connected between sebific duct and hydraulic element, the mode that its one end and sebific duct carry out by withholding is carried out fastening, become hose assembly together with sebific duct, it is upper that the other end is arranged on mechanical parts (or hydraulic element) by modes such as nut or flanges when needed, therefore rubber hose coupling is widely used in engineering machinery.
Refer to Fig. 1, existing rubber hose coupling is comprised of sleeve 110 and core bar 120, wherein, on the outer wall of the inwall of sleeve 110 and core bar 120, be provided with a plurality of separate profiles of tooth 111,121, and the tooth pitch that all adjacent profile of tooth of sleeve 110 is 111 is d, the tooth pitch that all adjacent profiles of tooth of core bar 120 are 121 is d ', and the tooth pitch d that adjacent profile of tooth is 111 is that d ' equates with the tooth pitch of 121 of adjacent profiles of tooth, the profile of tooth 111 of sleeve 110 and 121 dislocation corresponding (groove 122 that is 121 of the profile of tooth 111 of sleeve 110 and the profiles of tooth of core bar 120 is relative) of the profile of tooth of core bar 120.At rubber hose coupling and sebific duct, withhold that (being about to sebific duct is enclosed between the outer wall and sleeve 110 inwalls of core bar 120 from sebific duct incoming end 130, sebific duct is outer to be contacted with sleeve 110 inwalls, sebific duct internal layer contacts with core bar 120 outer walls, then use a kind of crimping equipment, sleeve 110 outer walls are compressed, it are shunk, sebific duct is engaged between profile of tooth 111 and profile of tooth 121) time, sebific duct is very easily damaged, and then causes hose assembly to be revealed.
Summary of the invention
Test after deliberation, find that sleeve 110 produces obvious resiliently deformable in the process of withholding, cause profile of tooth 111 to be inserted in trend direction to sebific duct and produce displacement, and the displacement more producing away from the profile of tooth 111 of sebific duct incoming end is larger, and simultaneously, the moulding distortion that core bar 120 produces is ignored compared with I.Therefore make the top of profile of tooth 111 of sleeve 110 not relative with groove 122 positions of 121 of the profiles of tooth of core bar 120, even the top of the top of the profile of tooth 111 of sleeve 110 and the profile of tooth 121 of core bar 120 is relative, and then the very easily damaged sebific duct inner glue layer of sebific duct stress is concentrated, very easily damaged, cause hose assembly to be revealed.Based on above-mentioned situation, the technical problem that the present invention mainly solves is to provide a kind of rubber hose coupling and sleeve, can, after assembly is withheld, effectively protect sebific duct.
For solving the problems of the technologies described above, the present invention adopts a kind of technological scheme: a kind of rubber hose coupling is provided, comprise sleeve (310, 610) and be arranged on the core bar (320 in described sleeve, 620), the inwall of described sleeve sets gradually a plurality of the first profile of tooth mechanisms (311 along its length, 611), the outer wall of described core bar sets gradually a plurality of the second profile of tooth mechanisms (321 along described length direction, 621), wherein, inter-agency the first spacing of each adjacent described the first profile of tooth is after withholding, deduct the second inter-agency spacing of corresponding adjacent the second profile of tooth, the difference obtaining is all less than default value, make after withholding, all described the first profile of tooth mechanisms all misplace relative with all described the second profile of tooth mechanisms, realize all described the first profile of tooth mechanisms and all drop at least partly on core bar outer wall formed the second groove mechanism (322 between all adjacent the second profile of tooth mechanisms, 622) in.
Wherein, the first spacing between each adjacent described first profile of tooth mechanism (311,611), after withholding, is equal to the second spacing between corresponding adjacent the second profile of tooth mechanism (321,621).
Wherein, all described the first spacing on described sleeve (310,610) becomes arithmetic progression before withholding, and more larger away from the first spacing of the sebific duct incoming end (330) of described rubber hose coupling, and all described the second spacing all equate.
Wherein, the tolerance of described arithmetic progression is the numerical value between 0.4 millimeter to 0.5 millimeter.
Wherein, described in each, the first profile of tooth mechanism (311,611) is the independent loop configuration around described sleeve (310,610) inwall one circle, and described in each, the second profile of tooth mechanism (321,621) is the independent loop configuration around described core bar (320,620) outer wall one circle.
Wherein, space on described sleeve (310,610) inwall between all adjacent the first profile of tooth mechanisms (311,611) forms the first groove mechanism (612), described the first groove mechanism, the second groove mechanism (322,622) are helix structure, and at least one rotation direction and sebific duct pull-off trend opposite direction in described first, second groove mechanism.
Wherein, described the first profile of tooth mechanism (311,611), the second profile of tooth mechanism (322,622) cross section are along its length triangle or trapezoidal, and described triangle peak shade drops on the one side of something away from described sebific duct incoming end (330) of base, or described trapezoidal flash shade major part drops on the one side of something away from described sebific duct incoming end of base.
For solving the problems of the technologies described above, the present invention adopts a kind of technological scheme: a kind of sleeve is provided, described sleeve (310, 610) for rubber hose coupling, the inwall of described sleeve sets gradually a plurality of the first profile of tooth mechanisms (311 along its length, 611), wherein, inter-agency the first spacing of each adjacent described the first profile of tooth is after withholding, deduct the core bar (320 of rubber hose coupling, 620) corresponding adjacent the second profile of tooth mechanism (322 on outer wall, 622) the second spacing between, the difference obtaining is all less than default value, make after withholding, all described the first profile of tooth mechanisms all misplace relative with all described the second profile of tooth mechanisms, realize all described the first profile of tooth mechanisms and all drop at least partly on core bar outer wall formed the second groove mechanism (322 between all adjacent the second profile of tooth mechanisms, 622) in.
Wherein, all described the first spacing on described sleeve (310,610) becomes arithmetic progression before withholding, and more larger away from the first spacing of the sebific duct incoming end (330) of described rubber hose coupling.
Wherein, the tolerance of described arithmetic progression is the numerical value between 0.4 millimeter to 0.5 millimeter.
Wherein, described in each, the first profile of tooth mechanism (311,611) is the independent loop configuration around described sleeve (310,610) inwall one circle.
Wherein, space on described sleeve (310,610) inwall between all adjacent the first profile of tooth mechanisms (311,611) forms the first groove mechanism (612), described the first groove mechanism is helix structure, and the rotation direction of described the first groove mechanism and sebific duct pull-off trend opposite direction.
Be different from prior art, in the present invention, inter-agency the first spacing of each adjacent described the first profile of tooth is after withholding, deduct the second inter-agency spacing of corresponding adjacent the second profile of tooth, the difference obtaining is all less than default value, make after the displacement that this adjacent first profile of tooth machine produces when making up assembly precompressed of the inter-agency tooth pitch of adjacent the first profile of tooth, can all misplace relative with all the second profile of tooth mechanisms, avoid existing the top situation relative with the top of the second profile of tooth mechanism of the first profile of tooth mechanism, having realized described the first profile of tooth mechanism all at least drops on core bar outer wall between all adjacent the second profile of tooth mechanisms in formed the second groove mechanism, make the stressed even of sebific duct, avoid damaging sebific duct, play the effect of effective protection sebific duct.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of existing rubber hose coupling before withholding;
Fig. 2 is the cross section structure schematic diagram of existing rubber hose coupling after withholding
Fig. 3 be rubber hose coupling one mode of execution of the present invention partly cut open perspective view;
Fig. 4 is the cross section structure schematic diagram of the rubber hose coupling shown in Fig. 3 before withholding;
Fig. 5 is sebific duct structure described in Fig. 3 cross section structure schematic diagram after withholding;
Fig. 6 be another mode of execution of rubber hose coupling of the present invention partly cut open perspective view;
Fig. 7 is the cross section structure schematic diagram of the sleeve shown in Fig. 6 before withholding;
Fig. 8 is the cross section structure schematic diagram of the core bar shown in Fig. 6.
Embodiment
Below in conjunction with accompanying drawing and concrete mode of execution, describe.
Refer to Fig. 3 to 5, Fig. 3 be rubber hose coupling one mode of execution of the present invention partly cut open perspective view, Fig. 4 is the cross section structure schematic diagram of the rubber hose coupling shown in Fig. 3 before withholding, and Fig. 5 is sebific duct structure described in Fig. 3 cross section structure schematic diagram after withholding.In present embodiment, described rubber hose coupling 300 comprises sleeve 310 and core bar 320, and described sleeve 310 inner hollow, so that described core bar 320 is set in sleeve 310.The inwall of described sleeve 310 sets gradually a plurality of the first profile of tooth mechanisms 311 along its length, the outer wall of described core bar 320 sets gradually a plurality of the second profile of tooth mechanisms 321 along described length direction, wherein, the spacing that adjacent described the first profile of tooth mechanism is 311 is called the first spacing, the spacing that adjacent described the second profile of tooth mechanism is 321 becomes the second spacing, generally, first, the second spacing is greater than the double-width of the first profile of tooth mechanism 311, also be greater than the double-width of the second profile of tooth mechanism 321, and the first spacing that each adjacent described first profile of tooth mechanism is 311 is after withholding, deduct the second spacing of 321, corresponding adjacent the second profile of tooth mechanism, the difference obtaining is all less than default value, make after withholding, all described the first profile of tooth mechanisms 311 all misplace relative with all described the second profile of tooth mechanisms 321, realizing all described the first profile of tooth mechanisms 311 all drops on core bar 320 outer walls between all adjacent the second profile of tooth mechanisms 321 in formed the second groove mechanism 322 at least partly.For example, the first spacing that each adjacent described first profile of tooth mechanism is 311 is after withholding, deduct the second spacing of 321, corresponding adjacent the second profile of tooth mechanism, the difference obtaining is all less than 0.1 millimeter, or, the first spacing that each adjacent described first profile of tooth mechanism is 311, after withholding, is equal to the second spacing of 321, corresponding adjacent the second profile of tooth mechanism.
At this, to correspondence of the present invention, adjacent the second profile of tooth mechanism describes, the adjacent second profile of tooth mechanism of correspondence of described adjacent the first profile of tooth mechanism is withholds rear the second profile of tooth mechanism dropping on respectively in the groove of (as near sebific duct incoming end or away from sebific duct incoming end) of described two first profile of tooth mechanism the same sides, also referred to as two the second profile of tooth mechanisms that misplace relative with described adjacent two the first profile of tooth mechanisms.For example, on sleeve, from close sebific duct incoming end direction, be provided with a plurality of the first profile of tooth mechanisms, be sequentially the first a of profile of tooth mechanism, the first b of profile of tooth mechanism, the first c of profile of tooth mechanism, the first d of profile of tooth mechanism, on core bar, from being provided with a plurality of the second profile of tooth mechanisms near sebific duct incoming end direction, be sequentially the second a ' of profile of tooth mechanism, the second b ' of profile of tooth mechanism, the second c ' of profile of tooth mechanism, the second d ' of profile of tooth mechanism.Wherein, after withholding, the second a ' of profile of tooth mechanism drops on the first a of profile of tooth mechanism at least partly near the groove of sebific duct incoming end one side (i.e. the first a of profile of tooth mechanism, groove between b) on, the second b ' of profile of tooth mechanism drops on the groove of the first b of profile of tooth mechanism near sebific duct incoming end one side at least partly, the second c ' of profile of tooth mechanism drops on the groove of the first c of profile of tooth mechanism near sebific duct incoming end one side at least partly, the second d ' of profile of tooth mechanism drops on the groove of the first d of profile of tooth mechanism near sebific duct incoming end one side at least partly, at the second a ' of profile of tooth mechanism, b ', c ', d ' is corresponding and the first a of profile of tooth mechanism respectively, b, c, d dislocation relatively, adjacent the first a of profile of tooth mechanism, adjacent the second profile of tooth mechanism of correspondence of b is the second a ' of profile of tooth mechanism, b '.
In addition, the described default value in the present invention is for guaranteeing that each first profile of tooth mechanism drops on core bar under the prerequisite in the second groove at least partly, the first spacing after withholding and the permissible error value between the second spacing.General this default value can be determined according to the size of first, second spacing after actual withholding, for example, be percent first-class of the second spacing, at this, does not do concrete restriction.
Further particularly, present embodiment middle sleeve 310 and core bar 320 are cylindrical, described in each, the first profile of tooth mechanism 311 is the annular bump mechanism of independence around sleeve 310 inwall one circles, and each second profile of tooth mechanism 321 is the annular bump mechanism of independence around core bar 320 outer wall one circles.On core bar 320 outer walls, all the second spacing are equal to d2, and on sleeve 310 inwalls, all the first spacing become arithmetic progression before withholding, and more larger away from the first spacing of the sebific duct incoming end 330 of described rubber hose coupling 300.Wherein, the difference between each adjacent first spacing d1 is that the tolerance c of described arithmetic progression is the numerical value between 0.4 millimeter to 0.5 millimeter, and for example, tolerance c is 0.4 or 0.5 millimeter.
Owing to sebific duct being carried out from sebific duct incoming end 330 is inserted in rubber hose coupling 300 to assembly while withholding, sleeve 310 produces deformation, and the first profile of tooth mechanism 311 on sleeve lining is subjected to displacement.Through rubber hose coupling is carried out to a large amount of experimental verifications and simulation analysis, when withholding, the first profile of tooth mechanism 311 of sleeve 310 produces displacement toward described sebific duct incoming end 330 directions, for example, the displacement that previous the first profile of tooth mechanism 311 produces after withholding is S1, the displacement that a rear first profile of tooth mechanism 311 produces after withholding is S2, and the displacement difference Δ S producing between above-mentioned two the first profile of tooth mechanisms 311 is S1-S2.The displacement difference Δ S that on sleeve 310, all adjacent the first profile of tooth mechanisms 311 produce is arithmetic progression, and the general displacement more producing away from the first profile of tooth mechanism 311 of described sebific duct incoming end 330 is larger.The first spacing that adjacent described the first profile of tooth mechanism of present embodiment is 311 is after withholding, be called the 3rd spacing d3, the first spacing of 311, described adjacent described the first profile of tooth mechanism deducts the difference that displacement difference Δ S that this first adjacent profile of tooth mechanism 311 produces after withholding obtains.Wherein, on sleeve 310, all the 3rd spacing d3 all equate, and equal the second spacing d2 of 321, adjacent the second profile of tooth mechanism, make after withholding, it is relative that all described the first profile of tooth mechanisms 311 and all described the second profile of tooth mechanisms 321 all misplace, and realizes all described the first profile of tooth mechanisms 311 and all drop on core bar outer wall between all adjacent the second profile of tooth mechanisms 321 in formed the second groove mechanism 322.
Further optimally, each of present embodiment the first profile of tooth mechanism 311, the second profile of tooth mechanism 321 cross section are along its length trapezoidal, and trapezoidal flash AC shade major part drops on base BD one side of something away from sebific duct incoming end 330, so that when assembly is withheld, sebific duct is inserted in along the less side CD of slope, and withholding rear sebific duct pull-out direction need, along the larger side AB of slope, reach sebific duct and easily enter the effect that difficulty goes out.Certainly, in other embodiments, described first, second profile of tooth mechanism cross section along its length also can be peak shade drop on base away from one side of something of sebific duct incoming end or flash shade major part drop on away from other shapes on one side of something of sebific duct incoming end, such as triangle etc.
Certainly, the sleeve in the present invention and core bar are not defined as cylindrical, in other embodiments, also can be the shape that other adapt to sebific duct, as square etc.
In present embodiment; the first inter-agency spacing of all adjacent the first profile of tooth of withholding on front sleeve is arithmetic progression; and more larger away from the first spacing of the sebific duct incoming end of described rubber hose coupling; make after the displacement that this adjacent first profile of tooth machine produces when making up assembly precompressed of the inter-agency tooth pitch of adjacent the first profile of tooth; can guarantee that described the first profile of tooth mechanism all misplaces relative with the second profile of tooth mechanism; make the stressed even of sebific duct; avoid damaging sebific duct; play the effect of effective protection sebific duct; meanwhile, also promoted the de-ability of sebific duct sealing and resistance to plucking.
It should be noted that, above are only the mode of execution that the application comparatively optimizes, in other application implementation modes, the displacement difference Δ S that on sleeve, all adjacent the first profile of tooth mechanisms produce may not be arithmetic progression, on sleeve, all the first spacing are not set to arithmetic progression before withholding thereupon yet, described the first spacing only need meet: before withholding each first spacing deduct and withhold after the 3rd spacing that obtains of the displacement difference Δ S of this adjacent the first profile of tooth mechanism, the difference between the second spacing d2 inter-agency with corresponding adjacent the second profile of tooth is less than default value.For example, the displacement difference Δ S that on sleeve, all adjacent the first profile of tooth mechanisms produce equates, on sleeve, each first spacing is also set to equate before withholding, and its spacing size be the second inter-agency spacing d2 of corresponding the second profile of tooth first profile of tooth mechanism adjacent with this produce displacement difference Δ S's and, make after withholding, all described the first profile of tooth mechanisms all misplace relative with all described the second profile of tooth mechanisms, realizing all described the first profile of tooth mechanisms all drops on core bar outer wall between all adjacent the second profile of tooth mechanisms in formed the second groove mechanism at least partly, make the stressed even of sebific duct, avoid damaging sebific duct, play the effect of effective protection sebific duct.
Refer to Fig. 6 to 8, Fig. 6 be another mode of execution of rubber hose coupling of the present invention partly cut open perspective view, Fig. 7 is the cross section structure schematic diagram of the sleeve shown in Fig. 6 before withholding, Fig. 8 is the cross section structure schematic diagram of the core bar shown in Fig. 6.In present embodiment, described rubber hose coupling 600 is close with rubber hose coupling 300 structures of a upper mode of execution, its difference is, on described sleeve 610 inwalls, the space of 611, all adjacent the first profile of tooth mechanisms forms the first groove mechanism 612, on described core bar 620 outer walls, the space of 621, all adjacent the second profile of tooth mechanisms forms the second groove mechanism 622, described the first groove mechanism 612, the second groove mechanism 622 is helix structure, and described the first groove mechanism 612, the rotation direction of at least one and sebific duct pull-off trend opposite direction in the second groove mechanism 622, be that its rotation direction is Fig. 7, direction a shown in 8.
Be different from first, second profile of tooth mechanism of mode of execution and be independently annular protrusion structure, present embodiment groove is set to complete helix structure, when withholding, strengthened the area of contact of sebific duct inside and outside wall, when sleeve generation deformation, can with glue-line inside and outside the staggered locked sebific duct of core bar, and make sebific duct stressed more even, also greatly promoted the de-ability of resistance to plucking of sebific duct.
The present invention also provides a kind of mode of execution of sleeve, described sleeve is for the rubber hose coupling of above-mentioned mode of execution, the inwall of described sleeve sets gradually a plurality of the first profile of tooth mechanisms along its length, wherein, inter-agency the first spacing of each adjacent described the first profile of tooth is after withholding, deduct the second inter-agency spacing of corresponding adjacent the second profile of tooth on the core bar outer wall of rubber hose coupling, the difference obtaining is all less than default value, make after withholding, all described the first profile of tooth mechanisms all misplace relative with all described the second profile of tooth mechanisms, realizing all described the first profile of tooth mechanisms all drops on core bar outer wall between all adjacent the second profile of tooth mechanisms in formed the second groove mechanism at least partly.Specifically, sleeve of the present invention is the sleeve in rubber hose coupling in above-mentioned mode of execution, and it illustrates asks for an interview associated description above, and therefore not to repeat here.
Pass through such scheme, in the present invention, inter-agency the first spacing of each adjacent described the first profile of tooth is after withholding, deduct the second inter-agency spacing of corresponding adjacent the second profile of tooth, the difference obtaining is all less than default value, make after the displacement that this adjacent first profile of tooth machine produces when making up assembly precompressed of the inter-agency tooth pitch of adjacent the first profile of tooth, can all misplace relative with all the second profile of tooth mechanisms, avoid existing the top situation relative with the top of the second profile of tooth mechanism of the first profile of tooth mechanism, having realized described the first profile of tooth mechanism all at least drops on core bar outer wall between all adjacent the second profile of tooth mechanisms in formed the second groove mechanism, make the stressed even of sebific duct, avoid damaging sebific duct, play the effect of effective protection sebific duct.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a rubber hose coupling, it is characterized in that, comprise sleeve (310, 610) and be arranged on the core bar (320 in described sleeve, 620), the inwall of described sleeve sets gradually a plurality of the first profile of tooth mechanisms (311 along its length, 611), the outer wall of described core bar sets gradually a plurality of the second profile of tooth mechanisms (321 along described length direction, 621), wherein, inter-agency the first spacing of each adjacent described the first profile of tooth is after withholding, deduct the second inter-agency spacing of corresponding adjacent the second profile of tooth, the difference obtaining is all less than default value, make after withholding, all described the first profile of tooth mechanisms all misplace relative with all described the second profile of tooth mechanisms, realize all described the first profile of tooth mechanisms and all drop at least partly on core bar outer wall formed the second groove mechanism (322 between all adjacent the second profile of tooth mechanisms, 622) in.
2. rubber hose coupling according to claim 1, is characterized in that, the first spacing between each adjacent described first profile of tooth mechanism (311,611), after withholding, is equal to the second spacing between corresponding adjacent the second profile of tooth mechanism (321,621).
3. rubber hose coupling according to claim 2, it is characterized in that, all described the first spacing on described sleeve (310,610) becomes arithmetic progression before withholding, and more larger away from the first spacing of the sebific duct incoming end (330) of described rubber hose coupling, and all described the second spacing all equate.
4. according to the rubber hose coupling described in claims 1 to 3 any one, it is characterized in that, described in each, the first profile of tooth mechanism (311,611) is the independent loop configuration around described sleeve (310,610) inwall one circle, and described in each, the second profile of tooth mechanism (321,621) is the independent loop configuration around described core bar (320,620) outer wall one circle.
5. according to the rubber hose coupling described in claims 1 to 3 any one, it is characterized in that, space on described sleeve (310,610) inwall between all adjacent the first profile of tooth mechanisms (311,611) forms the first groove mechanism (612), described the first groove mechanism, the second groove mechanism (322,622) are helix structure, and at least one rotation direction and sebific duct pull-off trend opposite direction in described first, second groove mechanism.
6. according to the rubber hose coupling described in claims 1 to 3 any one, it is characterized in that, described the first profile of tooth mechanism (311,611), the second profile of tooth mechanism (322,622) cross section are along its length triangle or trapezoidal, and described triangle peak shade drops on the one side of something away from described sebific duct incoming end (330) of base, or described trapezoidal flash shade major part drops on the one side of something away from described sebific duct incoming end of base.
7. a sleeve, it is characterized in that, described sleeve (310, 610) for rubber hose coupling, the inwall of described sleeve sets gradually a plurality of the first profile of tooth mechanisms (311 along its length, 611), wherein, inter-agency the first spacing of each adjacent described the first profile of tooth is after withholding, deduct the core bar (320 of rubber hose coupling, 620) corresponding adjacent the second profile of tooth mechanism (322 on outer wall, 622) the second spacing between, the difference obtaining is all less than default value, make after withholding, all described the first profile of tooth mechanisms all misplace relative with all described the second profile of tooth mechanisms, realize all described the first profile of tooth mechanisms and all drop at least partly on core bar outer wall formed the second groove mechanism (322 between all adjacent the second profile of tooth mechanisms, 622) in.
8. sleeve according to claim 7, is characterized in that, all described the first spacing on described sleeve (310,610) becomes arithmetic progression before withholding, and more larger away from the first spacing of the sebific duct incoming end (330) of described rubber hose coupling.
9. according to the sleeve described in claim 7 or 8, it is characterized in that, described in each, the first profile of tooth mechanism (311,611) is the independent loop configuration around described sleeve (310,610) inwall one circle.
10. according to the sleeve described in claim 7 or 8, it is characterized in that, space on described sleeve (310,610) inwall between all adjacent the first profile of tooth mechanisms (311,611) forms the first groove mechanism (612), described the first groove mechanism is helix structure, and the rotation direction of described the first groove mechanism and sebific duct pull-off trend opposite direction.
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CN202158296U (en) * | 2011-07-13 | 2012-03-07 | 山推工程机械股份有限公司 | High-pressure hose connector |
CN202546082U (en) * | 2012-03-05 | 2012-11-21 | 三明华能液压泵阀制造有限公司 | Hose coupling |
CN203979721U (en) * | 2014-06-18 | 2014-12-03 | 江西福事特液压有限公司 | Integrative soft pipe joint |
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CN103672251B (en) | 2016-08-03 |
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